Looking for a compact, low-heat light that gives clean oblique illumination for photographing plug face and pin head striations after suspected bumping; my 5000K LED penlight is blowing out micro-scores at shallow angles. What’s working for you in the field — high-CRI pens, fiber optic goosenecks, or a specific lumen/beam profile — that preserves trace, adds minimal heat, and holds detail for later comparison microscopy?